Bromi
35
Br
Ryhmä
17
Jakso
4
Lohko
p
Protonia
Elektronit
Neutronia
35
35
45
Yleiset ominaisuudet
Järjestysluku
35
Atomipaino
79,904
Massaluku
80
Luokka
Halogeenit
Väri
Punainen
Radioaktiivisuus
Ei
From the Greek word bromos, stench
Kiderakenne
Päätepintakeskinen rombinen
Historia
Carl Jacob Löwig discovered bromine in 1825, while still a chemistry student at Heidelberg University, Germany.
Antoine Balard distilled the bromine from a solution of seaweed ash saturated with chlorine in 1824.
He finally published his results in 1826, providing evidence that the substance he had discovered was a new element.
Antoine Balard distilled the bromine from a solution of seaweed ash saturated with chlorine in 1824.
He finally published his results in 1826, providing evidence that the substance he had discovered was a new element.
Elektroneja elektronikuorilla
2, 8, 18, 7
Orbitaalirakenne
[Ar] 3d10 4s2 4p5
Bromine is the only nonmetallic element that is liquid at ordinary temperatures
Fyysiset ominaisuudet
Olomuoto
Neste
Tiheys
3,122 g/cm3
Sulamispiste
265,95 K | -7,2 °C | 19,04 °F
Kiehumispiste
331,95 K | 58,8 °C | 137,84 °F
Sulamislämpö
5,8 kJ/mol
Höyrystymislämpö
14,8 kJ/mol
Ominaislämpökapasiteetti
0,474 J/g·K
Esiintyvyys maankuoressa
0,0003%
Esiintyvyys maailmankaikkeudessa
7×10-7%
CAS-numero
7726-95-6
PubChem CID-numero
24408
Atomiominaisuudet
Atomisäde
120 pm
Kovalenttisäde
120 pm
Elektronegatiivisuus
2,96 (Paulingin asteikko)
Ionisoitumispotentiaali
11,8138 eV
Moolitilavuus
23,5 cm3/mol
Lämmönjohtavuus
0,00122 W/cm·K
Hapetusluvut
-1, 1, 3, 4, 5, 7
Käyttö
Bromine is used in making fumigants, flameproofing agents, water purification compounds, dyes, medicines and sanitizers.
Potassium bromide is used as a source of bromide ions for the manufacture of silver bromide for photographic film.
Bromine is also used to reduce mercury pollution from coal-fired power plants.
Potassium bromide is used as a source of bromide ions for the manufacture of silver bromide for photographic film.
Bromine is also used to reduce mercury pollution from coal-fired power plants.
Bromine is poisonous and causes skin burns
Isotooppi
Vakaat isotoopit
79Br, 81BrEpävakaat isotoopit
67Br, 68Br, 69Br, 70Br, 71Br, 72Br, 73Br, 74Br, 75Br, 76Br, 77Br, 78Br, 80Br, 82Br, 83Br, 84Br, 85Br, 86Br, 87Br, 88Br, 89Br, 90Br, 91Br, 92Br, 93Br, 94Br, 95Br, 96Br, 97Br